A species whose numbers have declined or whose habitat has shrunk so much that it can become extinct in the near future without conservation is classified as:

1. The definition stresses possible extinction in the near future without conservation measures. 2. This matches the endangered species category, e.g. lion-tailed monkey. 3. Rare and vulnerable species describe reduced numbers but a different threat level. 4. Indeterminate species lack definite information; hence the answer is Endangered species. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 4 "Environmental Management", p.54_